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US252956A
Expired / Lapsed
US
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Laying subterranean conductors
Assignee: —
•
Filing: —
•
Granted: 1882-01-31
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Expires: 1899-01-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:28
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/46; G02B6/50; G02B6/52; H; H02; H02G; H02G1/00; H02G1/06; H02G1/08; H02G1/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1885-01-30 | 1885-08-01 | 1886-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1889-01-30 | 1889-08-01 | 1890-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1893-01-30 | 1893-08-01 | 1894-01-31 | $7700.00 | Window Closed / Lapsed |